Responsive Email Newsletter Template Design └ MailChimp Template, Constant-Contact Template, Litmus Testing, Mailgun and Sandy Cross Browser/Device Compatibility └ IE, Firefox, Chrome, Safari, iOS Safari and Android Chrome E-Commerce └ Shopify, SquareSpace, OpenCart, PrestaShop and Magento. FrontEnd Development └ HTML4, HTML5, CSS2, CSS3, JavaScript, jQuery, AJAX, BackboneJS and AngularJS Responsive Frameworks └ Bootstrap, Foundation, Semantic UI, PURE and Material Design Semantic Web └ Structured Data with Microdata, RDFa and LD-JSON using SchemaOrg Social Media Integration └ Facebook Open graph, Twitter Cards, Google+ Interactive-Post and Pinterest Google Analytics └ Content Experiment ( A/B Testing or Multivariate ) Performance Optimization └ Eliminate render-blocking for JavaScript & CSS, Lazyloading, On-demand Widgets